Grill tomatoes until blackened.

Grill jalapeno until blackened.

Grill onion until blackened.

Grill garlic cloves until blackened.

Remove stems from grilled vegetables.

Remove seeds from grilled jalapenos if desired.

Place grilled tomatoes, jalapenos, onion, and garlic in a food processor.

Add cilantro to the food processor.

Pulse until desired consistency is achieved.

Taste for salt and adjust if needed.

Chill until needed.